DE58337C - Vessel manometer - Google Patents
Vessel manometerInfo
- Publication number
- DE58337C DE58337C DENDAT58337D DE58337DA DE58337C DE 58337 C DE58337 C DE 58337C DE NDAT58337 D DENDAT58337 D DE NDAT58337D DE 58337D A DE58337D A DE 58337DA DE 58337 C DE58337 C DE 58337C
- Authority
- DE
- Germany
- Prior art keywords
- vessel
- manometer
- pressure
- tube
- partly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000007788 liquid Substances 0.000 claims description 10
- IJDNQMDRQITEOD-UHFFFAOYSA-N butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000035876 healing Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 210000002414 Leg Anatomy 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
- G01L7/18—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements using liquid as the pressure-sensitive medium, e.g. liquid-column gauges
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
KLASSE 42: Instrumente.CLASS 42: Instruments.
Zur Messung des Gasdruckes in Gasanstalten u. s. w. bedient man sich bisher meistentheils U-förmig gebogener, mit Wasser gefüllter Röhreri, welche aber ein schnelles und genaues Messen aus verschiedenen Gründen nichtgestatten; die Weite der Röhre und die Dicke der Wandungen verursachen leicht Fehler der Parallaxe, das Wasser zeigt oft infolge der fettigen Oberfläche des Glases geringe Adhäsion, folgt daher geringen Druckschwankungen schwer, und endlich ist die doppelte Ablesung und Zusammenzählung der Einzelwerthe lästig und zeitraubend.For the measurement of the gas pressure in gas stations and so on one has mostly used so far U-shaped bent tubing filled with water, which, however, is fast and accurate Do not allow measuring for various reasons; the width of the tube and the thickness of the walls easily cause errors in parallax, which the water often shows as a result of the greasy surface of the glass low adhesion, therefore it is difficult to follow small pressure fluctuations, and, finally, the double reading and totaling of the individual values is bothersome and troublesome time consuming.
Aus dem Bestreben, diesen Uebelständen abzuhelfen und gleichzeitig einen Apparat zu schaffen, welcher auch zur Messung höherer Drucke, in Eiserigiefsereien, bei Hochofenbetrieben u. dergl, geeignet ist, und bei welchem der Druck von einer einzigen, weit getheilten Gradtheilung bequem abgelesen werden kann, ist der den Gegenstand der vorliegenden Erfindung bildende einschenklige Druckmesser entstanden.From the endeavor to remedy these evils and at the same time to close an apparatus create, which can also be used to measure higher pressures, in iron foundries, in blast furnace operations and the like, is suitable, and at which the pressure of a single, widely divided Degree of healing can be conveniently read is the subject of the present Invention forming single-leg pressure gauges emerged.
Dieser besteht aus einem mit einer specifisch schweren Flüssigkeit (Quecksilber) gefüllten Gefäfs A, welches sich unten zu einem nach oben geführten, den unteren Theil des Schenkels bildenden engeren Gefäfs B fortsetzt und von der Flüssigkeit des Gefäfses A zum Theil gefüllt ist. Als Fortsetzung des Schenkels schliefst sich oben an das Gefäfs B die Röhre C von geringerem Querschnitt als jenes an. Oberhalb des Spiegels α b der specifisch schweren Flüssigkeit im Gefäfs B ist dieses mit einer specifisch leichten Flüssigkeit (Petroleum) vollends gefüllt, welche in die Röhre C hineinragt. An oder hinter der Röhre C ist eine Gradtheilung vorgesehen, welche die Höhenveränderungen der Flüssigkeitssäule leicht beobachten und so den Druck ablesen läfst. This consists of a vessel A filled with a specifically heavy liquid (mercury) , which continues at the bottom to a narrower vessel B , which extends upwards and forms the lower part of the thigh, and is partly filled by the liquid in vessel A. As a continuation of the leg, the top of the vessel B is followed by the tube C, which has a smaller cross-section than that. Above the level α b of the specifically heavy liquid in the vessel B , this is completely filled with a specifically light liquid (petroleum) which protrudes into the tube C. A degree of healing is provided on or behind the tube C , which easily observes the changes in height of the liquid column and thus allows the pressure to be read off.
Bezeichnet man den Querschnitt des Gefäfses A mit λ:2, denjenigen des Gefäfses B mit 1 und denjenigen- der Röhre C mitj*-2, so steigt, wenn ein . auf α b einwirkender Druck Dw diesen Flüssigkeitsspiegel um eine Einheit senkt, die Säule in der Röhre C um den BetragIf one denotes the cross section of the vessel A with λ: 2 , that of the vessel B with 1 and that of the tube C with j * - 2 , then increases when a. pressure Dw acting on α b lowers this liquid level by one unit, and the column in tube C by the amount
Dieser beobachteten Druckhöhe Di» entspricht, wenn S1 und S2 die specifischen Gewichte der Flüssigkeiten in A bezw. C sind, ein wirklicher Druck:This observed pressure height Di »corresponds if S 1 and S 2 are the specific gravity of the liquids in A respectively. C are a real print:
Dw = s\ (ι + χη + S2 χ* (— _ Dw = s \ (ι + χ η + S 2 χ * (- _
Es ist alsoSo it is
r2 r 2 S1(IS 1 (I.
1+S2^ -i-1 + S 2 ^ -i-
■Dw■ Dw
C _1_ γ-2 I C _1_ 2C _1_ γ-2 I C _1_ 2
A1 +X S1 +—2 —A 1 + XS 1 + —2 -
• D«/.• D «/.
Man hat es sonach durch Abänderung der Querschnittsverhältnisse und des specifischen Gewichts der Flüssigkeiten vollkommen in der Hand, die Einheit des messenden Druckes in Wassersäule durch eine Beobachtungshöhe von o,o8 bis i,2 auszudrücken.You have it by changing the cross-sectional proportions and the specific Weight of liquids completely in hand, the unit of the measuring pressure in Water column to be expressed by an observation height of o, o8 to i, 2.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE58337C true DE58337C (en) |
Family
ID=332649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT58337D Expired - Lifetime DE58337C (en) | Vessel manometer |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE58337C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1034883B (en) * | 1954-10-25 | 1958-07-24 | Franz Saile | Device for measuring overpressures, especially for measuring tire pressure in motor vehicles |
-
0
- DE DENDAT58337D patent/DE58337C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1034883B (en) * | 1954-10-25 | 1958-07-24 | Franz Saile | Device for measuring overpressures, especially for measuring tire pressure in motor vehicles |
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